Year Dollars 1992-01-01 2216091 1997-01-01 1715772 2002-01-01 542979 2003-01-01 407831 2004-01-01 806718 2005-01-01 1271453 2006-01-01 1336257 2007-01-01 5999835 2008-01-01 1458995 2009-01-01 4158531 2010-01-01 1263394 2011-01-01 933143 2012-01-01 756692 2013-01-01 614821 2014-01-01 630624 2015-01-01 1451618 2016-01-01 644075